Lecture 11 - 03:29 Lecture11 #...

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03:29 Lecture 11 Lab Olbrich Gardens  - Bus #3 stop at University and Breese Terrace – south side in  front of Engineering Ave leaves at 1:33 – be there at 1:25 (car – be there at 2 o’clock  I. Review: Asexual Propagation Cutting Division Layering Grafting Tissue culture  Plant Breeding Today US invests more than any other country on plant breeding (new plant varieties) Diversity disappearing Plant diversity is currently disappearing  We want to grow the same variety – more susceptible to disease and pests  Diversity enhanced  Trying to bring more in  National Plant Germplasm System (NPGS) Coordinated by USDA Contains more than 500,000 accessions  Populations of plants, lines, cultivars, individual plants, clones
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All germplasm available is free Used by US and world scientists Comprised by 4 major areas Plant introduction Plant collection Information systems Germplasm Advisory Group  Overall goal is to preserve the genetic diversity of plants Acquisition Preservation Evaluation Documentation Distribution  Core collections – mostly on coasts (because of weather)  Not many in Midwest  Alfalfa and peas, barley and wheat, cabbage, eggplant etc. The Germplasm Controversy Is germplasm the common heritage of humanity? Do seeds introduced into NPGS have inherent value or are breeders giving them value  through crossing and selection? Do developers of genetic material who make use of germplasm from developing world  countries have a responsibility to pay for these resources? What is the appropriate form of “benefit sharing”?
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Need for diversity: 1970s Southern Corn Blight - >80% of US corn crop was one variety  Wheat rust – need varieties  Global Expansion Existing germplasm collections New collections  Use of developing countries germplasm  Is it public or private right? US (or other country) vs source of germplasm
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This note was uploaded on 02/17/2012 for the course HORTI 120 taught by Professor Paterson during the Fall '11 term at University of Wisconsin.

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Lecture 11 - 03:29 Lecture11 #...

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